.categroydetail-box{
    display: flex;
    width:100%;  
    flex-flow: column;     
}
.categroydetail-box .am-navbar{
    flex:1;
    width:100%;
    height: .45rem;
    position: fixed;  
}
.categroydetail-box .am-navbar,.am-navbar-light{
    background: #b93321;
    color: #fff;
}
.categroydetail-box .am-navbar .am-navbar-title{
    color: #fff;
}
.categroydetail-box .menuBox{
    position: fixed;
    top: .45rem;    
    flex:1;
    width:100%;
}
.menuBox .menu{
    width: 100%;
    background: #fff;
    padding-left:.2rem;
    border-bottom: 1px solid #efefef;
}
.menuBox .menu a{
    display: inline-block;
    margin-right: .08rem;
    height: .45rem;
    color: #666;
    line-height: .45rem; 
    font-size: .12rem;

 }
 main{
     display: flex;
     flex: 1;
     padding-top: .9rem;
 }